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for loop

A FOR loop continues to process a block of code until a statement becomes false, and everything is defined in a single line, making it somewhat different to a WHILE loop. Read about FOR Loops

WHILE Loops:

Basically what a WHILE loop does is evaluate a statement as true or false. If it is true it executes some code and then alters the original statement and starts all over again by re-evaluating it. It continues to loop through the code like this until the statement becomes false